[smuzz]

Steve,
Is the wing removable to allow different formats to be swapped in?
Are the internals arranged to allow for a mid/low wing version later?

Drew - the wing is removable and interchangeable, the only constraints would be the chord at the wing root and the shape of the underside of the aerofoil to fit the saddle (but you could overcome the latter by having interchangeable wings all incorporating a standard flat section just at the root to fit the saddle).

Your second question is interesting. It would be a bit more difficult to manage - I'd say no, given the standard monobloc design. However you could redesign the profile of the monobloc to suit a mid-wing or low-wing design for separate aircraft I guess. Have a look at the first photograph of the build log - it shows the standard monobloc. You could alter that to suit mid/low-wing designs if you wanted to. The rest of the geometry, design and build process could remain pretty-much unchanged.

I'll get Junior to answer you other questions when he gets off his PS3